:root {
    --ink: #f7fbff;
    --muted: #a8b6cb;
    --navy: #061225;
    --black: #02050c;
    --panel: rgba(8, 22, 42, 0.68);
    --panel-strong: rgba(10, 24, 48, 0.9);
    --line: rgba(179, 220, 255, 0.18);
    --blue: #2f7dff;
    --cyan: #68e8ff;
    --violet: #7c5cff;
    --green: #63ffcf;
    --shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
    --radius: 8px;
    --container: min(1180px, calc(100% - 32px));
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 12% 12%, rgba(47, 125, 255, 0.28), transparent 32rem),
        radial-gradient(circle at 86% 10%, rgba(104, 232, 255, 0.16), transparent 30rem),
        radial-gradient(circle at 62% 74%, rgba(124, 92, 255, 0.2), transparent 28rem),
        linear-gradient(135deg, var(--black), var(--navy) 48%, #020713);
    color: var(--ink);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
}

body.nav-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input {
    font: inherit;
}

.site-noise {
    pointer-events: none;
    position: fixed;
    inset: 0;
    z-index: 100;
    opacity: 0.07;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
    background-size: 3px 3px;
    mix-blend-mode: overlay;
}

.site-header {
    position: fixed;
    top: 0;
    left: 50%;
    z-index: 50;
    width: var(--container);
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 0;
    transition: padding 240ms ease, background 240ms ease, border 240ms ease, box-shadow 240ms ease;
}

.site-header.is-scrolled,
.site-header.is-solid {
    top: 12px;
    padding: 12px 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(3, 10, 22, 0.72);
    box-shadow: 0 20px 70px rgba(0, 0, 0, 0.34);
    backdrop-filter: blur(18px);
}

.brand {
    display: inline-flex;
    flex-direction: column;
    line-height: 1;
    letter-spacing: 0;
}

.brand span {
    font-size: 1.15rem;
    font-weight: 900;
}

.brand small {
    margin-top: 4px;
    color: var(--cyan);
    font-size: 0.63rem;
    font-weight: 700;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 26px;
    color: rgba(247, 251, 255, 0.82);
    font-size: 0.9rem;
    font-weight: 700;
}

.main-nav a {
    transition: color 180ms ease, transform 180ms ease;
}

.main-nav a:hover {
    color: var(--cyan);
}

.nav-cta,
.button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 18px;
    border: 1px solid rgba(104, 232, 255, 0.36);
    border-radius: var(--radius);
    overflow: hidden;
    color: white;
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.78rem;
    letter-spacing: 0;
    cursor: pointer;
    isolation: isolate;
}

.nav-cta::before,
.button::before {
    content: "";
    position: absolute;
    inset: -80% -20%;
    z-index: -1;
    background: linear-gradient(110deg, transparent, rgba(255, 255, 255, 0.22), transparent);
    transform: translateX(-60%) rotate(8deg);
    transition: transform 520ms ease;
}

.nav-cta {
    background: rgba(47, 125, 255, 0.2);
}

.button:hover::before,
.nav-cta:hover::before {
    transform: translateX(60%) rotate(8deg);
}

.button-primary {
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    border-color: rgba(255, 255, 255, 0.18);
    box-shadow: 0 14px 48px rgba(47, 125, 255, 0.35);
}

.button-ghost {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
}

.button-card {
    width: 100%;
    margin-top: 18px;
    background: rgba(104, 232, 255, 0.1);
}

.nav-toggle {
    display: none;
    width: 46px;
    height: 46px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.06);
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 5px auto;
    background: white;
    transition: transform 240ms ease, opacity 240ms ease;
}

.hero {
    min-height: 100svh;
    position: relative;
    overflow: hidden;
}

.hero-slider,
.hero-slide {
    position: absolute;
    inset: 0;
}

.hero-slide {
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
    perspective: 1100px;
    transition: opacity 900ms ease;
}

.hero-slide.is-active {
    opacity: 1;
    pointer-events: auto;
}

.hero-bg {
    position: absolute;
    inset: -7%;
    background:
        linear-gradient(90deg, rgba(2, 5, 12, 0.82), rgba(6, 18, 37, 0.46), rgba(2, 5, 12, 0.86)),
        radial-gradient(circle at 70% 38%, rgba(104, 232, 255, 0.18), transparent 24rem),
        var(--hero-image),
        linear-gradient(135deg, #071a33, #061225 48%, #02050c);
    background-size: cover;
    background-position: center;
    filter: saturate(1.15) contrast(1.04);
    transform: scale(1.06);
}

.hero-slide.is-active .hero-bg {
    animation: cinematicZoom 2s ease both;
}

.hero-depth {
    position: absolute;
    border: 1px solid rgba(104, 232, 255, 0.2);
    background: linear-gradient(135deg, rgba(47, 125, 255, 0.22), rgba(104, 232, 255, 0.08));
    box-shadow: 0 0 70px rgba(104, 232, 255, 0.18);
    backdrop-filter: blur(10px);
}

.depth-one {
    right: 10%;
    top: 22%;
    width: 170px;
    height: 170px;
    transform: rotate(16deg) translateZ(120px);
    animation: floatOne 5s ease-in-out infinite;
}

.depth-two {
    left: 10%;
    bottom: 14%;
    width: 110px;
    height: 110px;
    transform: rotate(-14deg);
    animation: floatTwo 6s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: var(--container);
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    margin: 0 auto;
    padding-top: 80px;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--cyan);
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.checkout-hero h1,
.order-summary h1 {
    margin: 0;
    max-width: 880px;
    font-size: clamp(2.65rem, 8vw, 7.6rem);
    line-height: 0.92;
    font-weight: 900;
}

.hero-copy {
    max-width: 650px;
    margin: 28px 0 0;
    color: rgba(247, 251, 255, 0.78);
    font-size: clamp(1rem, 2vw, 1.25rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.hero-device {
    position: absolute;
    right: 8%;
    bottom: 12%;
    width: min(32vw, 420px);
    aspect-ratio: 1.45;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
    transform: rotateX(58deg) rotateZ(-8deg);
    backdrop-filter: blur(16px);
}

.device-screen {
    height: 100%;
    border-radius: var(--radius);
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 22px;
    background:
        linear-gradient(135deg, rgba(47, 125, 255, 0.7), rgba(104, 232, 255, 0.08)),
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.1) 0 1px, transparent 1px 18px);
}

.device-screen span {
    color: rgba(255, 255, 255, 0.72);
    font-weight: 800;
}

.device-screen strong {
    font-size: clamp(3rem, 8vw, 6.5rem);
    line-height: 0.8;
}

.slider-controls {
    position: absolute;
    left: 50%;
    bottom: 28px;
    z-index: 5;
    width: var(--container);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(-50%);
}

.slider-controls button {
    min-height: 42px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.06);
    color: white;
    cursor: pointer;
}

.slide-progress {
    flex: 1;
    height: 3px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
}

.slide-progress span {
    display: block;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--blue), var(--cyan));
}

.slide-progress span.is-running {
    animation: progressFill 2s linear forwards;
}

.slide-count {
    min-width: 70px;
    color: var(--muted);
    font-weight: 800;
}

.section {
    position: relative;
    width: var(--container);
    margin: 0 auto;
    padding: 96px 0;
}

.section-heading {
    max-width: 780px;
    margin-bottom: 34px;
}

.section-heading h2,
.checkout-hero h1,
.order-summary h1 {
    font-size: clamp(2rem, 5vw, 4.7rem);
    line-height: 1;
}

.section-heading p:not(.eyebrow),
.checkout-hero p,
.order-summary p {
    color: var(--muted);
    font-size: 1.02rem;
}

.stats-grid,
.product-grid,
.value-grid,
.steps,
.checkout-grid {
    display: grid;
    gap: 18px;
}

.stats-grid {
    grid-template-columns: repeat(3, 1fr);
}

.stat-card,
.product-card,
.value-card,
.step-card,
.summary-card,
.order-form,
.order-summary,
.bundle-panel {
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.stat-card {
    min-height: 160px;
    padding: 26px;
}

.stat-card strong {
    display: block;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1;
}

.stat-card span,
.value-card span,
.step-card p,
.license-note,
.microcopy,
.form-note {
    color: var(--muted);
}

.product-grid {
    grid-template-columns: repeat(4, 1fr);
}

.product-card {
    overflow: hidden;
    transform-style: preserve-3d;
    transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.product-card::after,
.summary-card::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
    background: linear-gradient(115deg, transparent 20%, rgba(255, 255, 255, 0.14), transparent 44%);
    transform: translateX(-120%);
    transition: transform 620ms ease;
}

.product-card:hover::after,
.summary-card:hover::after {
    transform: translateX(120%);
}

.product-card:hover {
    border-color: rgba(104, 232, 255, 0.42);
    box-shadow: 0 34px 110px rgba(47, 125, 255, 0.18);
}

.product-visual {
    min-height: 190px;
    padding: 14px;
    display: flex;
    align-items: flex-end;
    background:
        linear-gradient(150deg, rgba(3, 8, 18, 0.12), rgba(3, 8, 18, 0.78)),
        var(--product-image),
        radial-gradient(circle at 26% 22%, rgba(104, 232, 255, 0.36), transparent 18rem),
        linear-gradient(135deg, rgba(47, 125, 255, 0.65), rgba(124, 92, 255, 0.24), rgba(2, 5, 12, 0.8));
    background-size: cover;
    background-position: center;
}

.product-visual.large {
    min-height: 320px;
}

.product-visual span,
.mini-list span {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    background: rgba(2, 5, 12, 0.46);
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.72rem;
    font-weight: 800;
}

.product-body,
.summary-content,
.order-form,
.order-summary,
.value-card,
.step-card {
    padding: 22px;
}

.product-category {
    margin: 0 0 8px;
    color: var(--cyan);
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
}

.product-card h3,
.step-card h3,
.summary-content h2,
.form-heading h2 {
    margin: 0 0 10px;
    line-height: 1.15;
}

.product-card p,
.summary-content p {
    color: var(--muted);
    font-size: 0.92rem;
}

.price {
    display: block;
    margin: 14px 0;
    color: white;
    font-size: 1.15rem;
}

.mini-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.formats {
    margin-bottom: 0;
    font-weight: 800;
}

.value-grid {
    grid-template-columns: repeat(4, 1fr);
}

.value-card b {
    display: block;
    margin-bottom: 10px;
    font-size: 1.05rem;
}

.steps {
    grid-template-columns: repeat(3, 1fr);
    position: relative;
}

.steps::before {
    content: "";
    position: absolute;
    left: 10%;
    right: 10%;
    top: 38px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    opacity: 0.42;
}

.step-card {
    min-height: 220px;
}

.step-card span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    margin-bottom: 18px;
    border: 1px solid rgba(104, 232, 255, 0.5);
    border-radius: 50%;
    background: rgba(47, 125, 255, 0.22);
    color: var(--cyan);
    font-weight: 900;
}

.bundle-panel {
    min-height: 460px;
    padding: clamp(28px, 5vw, 58px);
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 30px;
    overflow: hidden;
    background:
        radial-gradient(circle at 76% 36%, rgba(104, 232, 255, 0.24), transparent 22rem),
        linear-gradient(135deg, rgba(47, 125, 255, 0.2), rgba(8, 22, 42, 0.78));
}

.bundle-panel h2 {
    margin: 0;
    font-size: clamp(2.2rem, 5vw, 5rem);
    line-height: 0.95;
}

.bundle-panel p {
    max-width: 620px;
    color: var(--muted);
}

.bundle-panel strong {
    display: block;
    margin: 20px 0;
    font-size: 1.7rem;
}

.bundle-stack {
    position: relative;
    min-height: 360px;
    perspective: 900px;
}

.bundle-stack span {
    position: absolute;
    width: 54%;
    height: 58%;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius);
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.88), rgba(206, 230, 255, 0.58)),
        repeating-linear-gradient(0deg, transparent 0 18px, rgba(47, 125, 255, 0.22) 18px 20px);
    box-shadow: var(--shadow);
}

.bundle-stack span:nth-child(1) { left: 8%; top: 18%; transform: rotateY(-28deg) rotateZ(-8deg); }
.bundle-stack span:nth-child(2) { left: 25%; top: 8%; transform: rotateY(-14deg) rotateZ(7deg); }
.bundle-stack span:nth-child(3) { right: 8%; top: 28%; transform: rotateY(18deg) rotateZ(13deg); }
.bundle-stack span:nth-child(4) { right: 22%; bottom: 0; transform: rotateY(26deg) rotateZ(-4deg); }

.faq-list {
    display: grid;
    gap: 12px;
}

details {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.055);
}

summary {
    padding: 18px 20px;
    cursor: pointer;
    font-weight: 800;
}

details p {
    margin: 0;
    padding: 0 20px 20px;
    color: var(--muted);
}

.final-cta {
    width: var(--container);
    margin: 0 auto 80px;
    padding: 70px clamp(22px, 5vw, 54px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
        radial-gradient(circle at 50% 0, rgba(104, 232, 255, 0.22), transparent 22rem),
        rgba(8, 22, 42, 0.72);
    text-align: center;
}

.final-cta h2 {
    max-width: 820px;
    margin: 0 auto 24px;
    font-size: clamp(2rem, 5vw, 4.6rem);
    line-height: 1;
}

.site-footer {
    width: var(--container);
    margin: 0 auto;
    padding: 40px 0 52px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    border-top: 1px solid var(--line);
}

.site-footer p {
    max-width: 620px;
    color: var(--muted);
}

.site-footer nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    color: var(--muted);
}

.checkout-page {
    background:
        radial-gradient(circle at 16% 8%, rgba(47, 125, 255, 0.28), transparent 30rem),
        radial-gradient(circle at 88% 34%, rgba(104, 232, 255, 0.16), transparent 24rem),
        linear-gradient(135deg, #02050c, #061225);
}

.checkout-shell {
    width: var(--container);
    margin: 0 auto;
    padding: 132px 0 80px;
}

.checkout-shell.narrow {
    max-width: 840px;
}

.checkout-hero {
    max-width: 900px;
    margin-bottom: 32px;
}

.checkout-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
}

.summary-card {
    overflow: hidden;
}

.summary-content h3 {
    margin: 22px 0 8px;
}

.clean-list {
    margin: 0;
    padding-left: 20px;
    color: var(--muted);
}

.order-form {
    position: sticky;
    top: 108px;
}

.form-heading {
    margin-bottom: 18px;
}

label {
    display: block;
    margin: 0 0 14px;
    color: rgba(247, 251, 255, 0.9);
    font-weight: 800;
}

label span {
    color: var(--muted);
    font-weight: 600;
}

input {
    width: 100%;
    min-height: 50px;
    margin-top: 8px;
    padding: 0 14px;
    border: 1px solid rgba(179, 220, 255, 0.22);
    border-radius: var(--radius);
    background: rgba(2, 5, 12, 0.5);
    color: white;
    outline: none;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

input:focus {
    border-color: var(--cyan);
    box-shadow: 0 0 0 4px rgba(104, 232, 255, 0.1);
}

.order-form .button,
.order-summary .button {
    width: 100%;
    margin-top: 8px;
}

.calc-page {
    height: 100svh;
    min-height: 100svh;
    overflow: hidden;
    overscroll-behavior: none;
    touch-action: manipulation;
    user-select: none;
}

.calc-screen {
    width: 100%;
    height: 100svh;
    min-height: 100svh;
    display: grid;
    place-items: center;
    padding: 0 16px;
}

.calculator-panel {
    width: min(430px, 100%);
    height: 100svh;
    display: grid;
    grid-template-rows: auto minmax(160px, 1fr) auto auto;
    gap: 16px;
    padding: max(14px, env(safe-area-inset-top)) 0 max(14px, env(safe-area-inset-bottom));
}

.calc-topbar,
.calc-display,
.calc-pad,
.calc-error {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(8, 22, 42, 0.72);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.calc-topbar {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 16px;
}

.calc-topbar > span {
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 900;
    text-align: right;
    text-transform: uppercase;
}

.calc-display {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 160px;
    padding: clamp(22px, 5vw, 34px);
    overflow: hidden;
    background:
        radial-gradient(circle at 80% 16%, rgba(104, 232, 255, 0.2), transparent 18rem),
        rgba(8, 22, 42, 0.72);
}

.calc-display p {
    margin: 0 0 12px;
    color: var(--muted);
    font-size: 0.86rem;
    font-weight: 800;
    text-transform: uppercase;
}

.calc-display strong {
    display: block;
    color: white;
    font-size: clamp(2.5rem, 10vw, 4.6rem);
    line-height: 0.95;
    overflow-wrap: anywhere;
}

.calc-pad {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(72px, 1fr);
    gap: 10px;
    padding: 12px;
}

.calc-pad button {
    min-width: 0;
    min-height: 68px;
    border: 1px solid rgba(179, 220, 255, 0.2);
    border-radius: var(--radius);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.035)),
        rgba(2, 5, 12, 0.42);
    color: white;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 18px 42px rgba(0, 0, 0, 0.22);
    cursor: pointer;
    font-size: clamp(1.35rem, 5vw, 2rem);
    font-weight: 900;
    transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
    touch-action: manipulation;
}

.calc-pad button:active {
    transform: scale(0.97);
    border-color: rgba(104, 232, 255, 0.6);
}

.calc-pad .calc-action {
    color: var(--cyan);
    font-size: clamp(0.78rem, 3vw, 1rem);
    text-transform: uppercase;
}

.calc-pad .calc-enter {
    grid-row: span 2;
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    color: white;
    font-size: clamp(0.9rem, 4vw, 1.15rem);
    text-transform: uppercase;
}

.calc-pad .calc-zero {
    grid-column: span 3;
}

.calc-note {
    margin: 0;
    color: var(--muted);
    font-size: 0.82rem;
    text-align: center;
}

.calc-error {
    width: min(760px, calc(100% - 24px));
    padding: 28px;
}

.summary-lines {
    display: grid;
    gap: 10px;
    margin: 28px 0;
}

.summary-lines div {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}

.summary-lines span {
    color: var(--muted);
}

.summary-lines strong {
    text-align: right;
}

.total-line strong {
    color: var(--cyan);
    font-size: 1.35rem;
}

.simple-nav {
    margin-left: auto;
}

.reveal,
.reveal-mask {
    opacity: 0;
    transform: translate3d(0, 28px, 0);
    transition: opacity 700ms ease, transform 700ms ease, clip-path 700ms ease, filter 700ms ease;
}

.reveal-mask {
    clip-path: inset(0 0 100% 0);
    filter: blur(10px);
}

.hero-slide.is-active .reveal-mask,
.reveal.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    clip-path: inset(0 0 0 0);
    filter: blur(0);
}

.hero-slide.is-active .reveal-mask:nth-child(2) {
    transition-delay: 120ms;
}

.hero-slide.is-active .reveal-mask:nth-child(3) {
    transition-delay: 220ms;
}

@keyframes cinematicZoom {
    from { transform: scale(1.16) translate3d(-1.5%, 1.5%, 0); filter: blur(10px) saturate(1.05); }
    to { transform: scale(1.04) translate3d(0, 0, 0); filter: blur(0) saturate(1.15); }
}

@keyframes floatOne {
    0%, 100% { transform: translate3d(0, 0, 0) rotate(16deg); }
    50% { transform: translate3d(-18px, 20px, 0) rotate(22deg); }
}

@keyframes floatTwo {
    0%, 100% { transform: translate3d(0, 0, 0) rotate(-14deg); }
    50% { transform: translate3d(20px, -14px, 0) rotate(-8deg); }
}

@keyframes progressFill {
    from { width: 0; }
    to { width: 100%; }
}

@media (max-width: 1120px) {
    .product-grid,
    .value-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-device {
        opacity: 0.6;
    }
}

@media (max-width: 760px) {
    :root {
        --container: min(100% - 22px, 640px);
    }

    .site-header,
    .site-header.is-scrolled,
    .site-header.is-solid {
        top: 10px;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: rgba(3, 10, 22, 0.72);
        backdrop-filter: blur(18px);
    }

    .nav-toggle {
        display: block;
        position: relative;
        z-index: 61;
    }

    .nav-open .nav-toggle span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-open .nav-toggle span:nth-child(2) {
        opacity: 0;
    }

    .nav-open .nav-toggle span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .main-nav {
        position: fixed;
        inset: 76px 11px auto;
        z-index: 60;
        display: grid;
        gap: 0;
        padding: 18px;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: rgba(3, 10, 22, 0.92);
        box-shadow: var(--shadow);
        backdrop-filter: blur(22px);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-14px) scale(0.98);
        transition: opacity 220ms ease, transform 220ms ease;
    }

    .nav-open .main-nav {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0) scale(1);
    }

    .main-nav a {
        min-height: 50px;
        display: flex;
        align-items: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .main-nav .nav-cta {
        margin-top: 14px;
        border-bottom: 1px solid rgba(104, 232, 255, 0.36);
    }

    .hero-content {
        padding-top: 102px;
        justify-content: center;
    }

    .hero h1 {
        max-width: 12ch;
        font-size: clamp(2.35rem, 14vw, 4.35rem);
    }

    .hero-copy {
        max-width: 96%;
    }

    .hero-device {
        right: -18%;
        bottom: 14%;
        width: 70vw;
        opacity: 0.28;
    }

    .depth-one {
        right: -30px;
        width: 104px;
        height: 104px;
    }

    .depth-two {
        left: -20px;
        bottom: 22%;
        width: 78px;
        height: 78px;
    }

    .slider-controls {
        bottom: 16px;
        gap: 8px;
    }

    .slider-controls button {
        padding: 0 10px;
        font-size: 0.76rem;
    }

    .section {
        padding: 68px 0;
    }

    .stats-grid,
    .product-grid,
    .value-grid,
    .steps,
    .checkout-grid,
    .bundle-panel,
    .site-footer {
        grid-template-columns: 1fr;
    }

    .steps::before {
        display: none;
    }

    .product-visual {
        min-height: 210px;
    }

    .bundle-stack {
        min-height: 260px;
    }

    .site-footer nav {
        grid-template-columns: 1fr;
    }

    .checkout-shell {
        padding-top: 120px;
    }

    .order-form {
        position: static;
    }

    .summary-lines div {
        display: grid;
        gap: 4px;
    }

    .summary-lines strong {
        text-align: left;
        overflow-wrap: anywhere;
    }

    .calc-screen {
        padding: 0;
    }

    .calculator-panel {
        width: 100%;
        height: 100svh;
        padding: max(10px, env(safe-area-inset-top)) 10px max(10px, env(safe-area-inset-bottom));
        gap: 10px;
    }

    .calc-topbar,
    .calc-display,
    .calc-pad {
        border-radius: var(--radius);
    }

    .calc-pad {
        grid-auto-rows: minmax(64px, 1fr);
        gap: 8px;
    }

    .calc-pad button {
        min-height: 58px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 1ms !important;
    }
}